VSS Question

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N2BUICK

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TurboBuick.Com Supporter!
Joined
May 25, 2001
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Does anyone know the difference in a VSS that uses 4 wires as opposed to 3 wire set up?
The 4 wire set up uses 3 wires into one female terminal. The 4th wire is a single red to a one wire female terminal.
This is on a wiring harness that I think came out of a 1987 digital dash car?
I have another harness that has only the 3 wire connector. Is this standard on a standard Regal?
Just trying to help another guy find some parts. I should find my wiring diagrams, that would help
 

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